Donald Trump grades himself C grade for messaging, A in achievement

(CNN) -- Approval ratings for Donald Trump's job performance have been at historic lows, but the President's own report card of his performance has high marks.

Trump indicated that he has been a high achiever these first few weeks in the White House.

"In terms of achievement, I think I'd give myself an A. Because I think I've done great things -- I and my people, but I don't think we've explained it well enough to the American public," he said in an interview that aired Tuesday on Fox News' "Fox and Friends."

"I think I give myself an A in terms of what I've actually done," Trump added.

But the President seemed to think he's just been an average messenger.

"In terms of messaging, I would give myself a C or a C+,'" he said.

Trump also gave himself an A+ for "effort."

"But results are more important (than effort)," he added.

A Quinnipiac University survey released last week found that American voters don't view how Trump is handling his job as favorably. The majority of American voters -- 55% -- disapprove of Trump's performance. Only 38% of American voters approve of Trump's job performance.